A circular running track is 1/2 a mile long. Elena runs on this track, completing each lap in 1/16 of an hour. What is Elena's running SPEED? Include the unit of measure.

8miles per hour

Step-by-step explanation:

1/16 of hour = 3 minutes and 45 seconds

if the track is 1/2 mile long and elana can run 1 lap in 3 minutes and 45 seconds then she can run 1 mile in 7 and a half minutes.

60/7.5 = 8

Therefore elena is running at 8miles/hour  our and is really slow

it costs $20 to interview each person for a survey. find the cost to obtain a +- 3% margin of error.

step-by-step explanation:

copy and paste, put it in google

the answer is 375 miles

step-by-step explanation: